| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.53 | 3.63 | -0.10 |
| Feb | 2.88 | 2.89 | -0.01 |
| Mar | 4.16 | 4.13 | 0.03 |
| Apr | 3.70 | 3.64 | 0.06 |
| May | 3.71 | 3.69 | 0.02 |
| Jun | 4.41 | 4.36 | 0.05 |
| Jul | 4.82 | 4.77 | 0.05 |
| Aug | 4.74 | 4.60 | 0.14 |
| Sep | 4.95 | 5.36 | -0.41 |
| Oct | 3.52 | 3.55 | -0.03 |
| Nov | 3.42 | 3.38 | 0.04 |
| Dec | 3.55 | 3.60 | -0.05 |
47.39 | 47.60 | -0.21 |